Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx: fix cleaner shader IB buffer overflow The cleaner shader sysfs path allocates a 16-dword (64 byte) IB but incorrectly fills (align_mask + 1) dwords. On GFX rings align_mask is 0xff, so the loop wrote 256 dwords into a 64-byte buffer, causing a kernel page fault. The IB only needs to be a minimal NOP shell to schedule the job; the cleaner shader itself is emitted on the ring via emit_cleaner_shader(). Fill 16 dwords to match the allocation. v2: Use ib_size_dw variable (Lijo) (cherry picked from commit bf21af331ebf72d0935fd70c73192414a422c03a)
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
d361ad5d2fc0e4d59d5d538092c9b37889756642 to < 201633f47b542a99bb7baafdfcda7781249fb3d9affectedd361ad5d2fc0e4d59d5d538092c9b37889756642 to < e28420e36542ae8b66a5bdcec419525f521bddf8affectedd361ad5d2fc0e4d59d5d538092c9b37889756642 to < 9cd9a983769a4d0e9cc80a287316ee79685d38b3affectedd361ad5d2fc0e4d59d5d538092c9b37889756642 to < 3e864bf2a32a1cbdf1e0f9c5a5a4176e8575f4a3affected
Linux Linux
Default version status: affected
6.12affected0 to < 6.12unaffected6.12.103 to ≤ 6.12.*unaffected6.18.42 to ≤ 6.18.*unaffected7.1.6 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected